Power export system for a military vehicle

Abstract

A military vehicle including a chassis, a cab mounted to the chassis and defining a rear wall, an engine mounted to the chassis, a transfer case coupled to the engine and including a driven output providing mechanical power to the military vehicle and a generator output, and an electric machine positioned rearward of the rear wall of the cab and coupled to the generator output of the transfer case and generating electrical power.

The invention claimed is: 
     
       1. A military vehicle comprising:
 a chassis; 
 a cab mounted to the chassis and defining a rear wall; 
 an engine mounted to the chassis; 
 a transfer case coupled to the engine and including a driven output providing mechanical power to the military vehicle and a generator output; 
 an electric machine positioned rearward of the rear wall of the cab and coupled to the generator output of the transfer case and generating electrical power; and 
 an enclosure coupled to the chassis on a passenger side of the military vehicle and housing power electronics coupled to the electric machine and a power export panel. 
 
     
     
       2. The military vehicle of  claim 1 , further comprising:
 an export power panel including:
 power inputs configured to receive electrical power for charging an energy storage system or powering vehicle components, and 
 power outputs configured to provide electrical power from at least one of the energy storage system and the electric machine to loads remote from the vehicle. 
 
 
     
     
       3. The military vehicle of  claim 1 , wherein the transfer case includes a generator clutch that provides selective engagement between the engine and the generator output. 
     
     
       4. The military vehicle of  claim 1 , wherein the generator clutch is electronically actuated. 
     
     
       5. The military vehicle of  claim 1 , wherein the transfer case includes a drive clutch that provides selective engagement between the engine and the driven output. 
     
     
       6. The military vehicle of  claim 5 , wherein the drive clutch is electrically actuated. 
     
     
       7. The military vehicle of  claim 1 , wherein the transfer case includes an electrically controlled auxiliary lubricant pump providing a positive flow of lubricant to the transfer case. 
     
     
       8. The military vehicle of  claim 1 , further comprising a generator gear box receiving mechanical power from the generator output of the transfer case and providing power to the electric machine. 
     
     
       9. The military vehicle of  claim 1 , wherein the chassis includes mounting brackets, the electric machine coupled to the mounting brackets with vibration dampers. 
     
     
       10. The military vehicle of  claim 1 , further comprising a low voltage power generation system mechanically powered by the engine. 
     
     
       11. A military vehicle comprising:
 a chassis; 
 a cab mounted to the chassis and defining a rear wall; 
 an engine mounted to the chassis; 
 a transfer case coupled to the engine and including a driven output providing mechanical power to the military vehicle and a generator output; 
 an electric machine positioned rearward of the rear wall of the cab and coupled to the generator output of the transfer case and generating electrical power; and 
 an export power panel including:
 power inputs configured to receive electrical power for charging an energy storage system or powering vehicle components; and 
 power outputs configured to provide electrical power from at least one of the energy storage system and the electric machine to loads remote from the vehicle; 
 wherein the power input and the power outputs are configured to be arranged in a ring-bus system. 
 
 
     
     
       12. A military vehicle comprising:
 a chassis; 
 a cab mounted to the chassis and defining a rear wall; 
 an engine mounted to the chassis; 
 a transfer case coupled to the engine and including a driven output providing mechanical power to the military vehicle and a generator output; 
 an electric machine positioned rearward of the rear wall of the cab and coupled to the generator output of the transfer case and generating electrical power; and 
 a generator gear box receiving mechanical power from the generator output of the transfer case and providing power to the electric machine; 
 wherein the generator gear box includes a gear box input shaft coupled to the generator output of the transfer case and a lubricant pump driven by the gear box input shaft. 
 
     
     
       13. A military vehicle comprising:
 a chassis; 
 a cab mounted to the chassis and defining a rear wall; 
 an engine mounted to the chassis; 
 a transfer case coupled to the engine and including a driven output providing mechanical power to the military vehicle and a generator output; 
 an electric machine positioned rearward of the rear wall of the cab and coupled to the generator output of the transfer case and generating electrical power; and 
 a generator gear box receiving mechanical power from the generator output of the transfer case and providing power to the electric machine; 
 wherein the generator gear box includes a gear box input shaft coupled to the generator output of the transfer case, and a gear train driving a generator shaft of the electric machine, and wherein the generator shaft is positioned vertically above the gear box input shaft. 
 
     
     
       14. A military vehicle comprising:
 a chassis; 
 a cab mounted to the chassis and defining a rear wall; 
 an engine mounted to the chassis; 
 a transfer case coupled to the engine and including a driven output providing mechanical power to the military vehicle and a generator output; and 
 an electric machine positioned rearward of the rear wall of the cab and coupled to the generator output of the transfer case and generating electrical power; 
 wherein the electric machine includes a cable housing directing phase cables toward a longitudinal center of the military vehicle. 
 
     
     
       15. A military vehicle, comprising:
 a chassis; 
 an engine mounted to the chassis; 
 a transfer case including
 a transfer case input shaft driven by the engine, 
 an electrically actuated generator clutch that provides selective engagement between the transfer case input shaft and a generator transfer shaft, and 
 an electrically actuated drive clutch that provides selective engagement between the transfer case input shaft and a driven output shaft; 
 
 a generator gear box including
 a gear box input shaft coupled to the generator transfer shaft of the transfer case, 
 a lubricant pump driven by the gear box input shaft, and 
 a gear train; and 
 
 an electric machine including a generator shaft coupled to the gear train of the gear box and positioned vertically above the gear box input shaft, the electrical machine generating electrical power. 
 
     
     
       16. The military vehicle of  claim 15 , further comprising an enclosure coupled to the chassis on a passenger side of the military vehicle and housing power electronics coupled to the electric machine and a power export panel including:
 power inputs configured to receive electrical power for charging an energy storage system or powering vehicle components, and 
 power outputs configured to provide electrical power from at least one of the energy storage system and the electric machine to loads remote from the vehicle, 
 wherein the power input and the power outputs are configured to be arranged in a ring-bus system. 
 
     
     
       17. The military vehicle of  claim 16 , further comprising a primary fuel tank positioned on a driver side of the military vehicle and a secondary fuel tank positioned on the passenger side of the military vehicle forward of the enclosure. 
     
     
       18. A military vehicle, comprising:
 a chassis; 
 a cab mounted to the chassis and defining a rear wall; 
 an engine mounted to the chassis; 
 an electric machine positioned rearward of the rear wall of the cab and coupled to the engine and generating electrical power; and 
 an enclosure coupled to the chassis on a passenger side of the military vehicle and housing power electronics coupled to the electric machine and a power export panel including:
 power inputs configured to receive electrical power for charging an energy storage system or powering vehicle components, and 
 power outputs configured to provide electrical power from at least one of the energy storage system and the electric machine to loads remote from the vehicle, 
 wherein the power input and the power outputs are configured to be arranged in a ring-bus system. 
 
 
     
     
       19. The military vehicle of  claim 18 , further comprising:
 a transfer case including
 a transfer case input shaft driven by the engine, 
 an electrically actuated generator clutch that provides selective engagement between the transfer case input shaft and a generator transfer shaft, and 
 an electrically actuated drive clutch that provides selective engagement between the transfer case input shaft and a driven output shaft; and 
 
 a generator gear box including
 a gear box input shaft coupled to the generator transfer shaft of the transfer case, 
 a lubricant pump driven by the gear box input shaft, and 
 a gear train driving a generator shaft of the electric machine, the generator shaft positioned vertically above the gear box input shaft.